| Dennis Ferguson 2008-01-30, 10:33 pm |
| On 2008-01-31, Mark Crispin <MRC@Washington.EDU> wrote:
> Close, but not quite correct. There is no GSM in Japan, but not "all
> companies" support UMTS.
Ah, sorry. If I would have thought about it I'd have known it (only
two UMTS carriers show up on my phone, but there's more than two
mobile carriers), but I'm kind of fixated on UMTS in Japan since that
is the only phone I have which works there.
> Willcom has a PHS network. IIRC, PHS is also used by a carrier in Taiwan.
I think one of the China landline carriers (China Netcom?) also runs a
substantial PHS network. I read somewhere that they are closing in on
100 million subscribers, which anywhere else would be a huge number but
which, in China, is only 15% of the market.
> The bottom line is that most US phones do NOT roam in Japan. Only a phone
> with UMTS in the 2100 band will roam in Japan. IIRC, T-Mobile and AT&T
> each have one smartphone that has that.
I've not heard of a T-Mobile phone which has it. AT&T has one.
Dennis Ferguson
|